WO2007078440A3 - Optimized operation of a dense reader system with improved listen before talk communications - Google Patents

Optimized operation of a dense reader system with improved listen before talk communications Download PDF

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Publication number
WO2007078440A3
WO2007078440A3 PCT/US2006/044531 US2006044531W WO2007078440A3 WO 2007078440 A3 WO2007078440 A3 WO 2007078440A3 US 2006044531 W US2006044531 W US 2006044531W WO 2007078440 A3 WO2007078440 A3 WO 2007078440A3
Authority
WO
WIPO (PCT)
Prior art keywords
readers
network
listen before
before talk
improved
Prior art date
Application number
PCT/US2006/044531
Other languages
French (fr)
Other versions
WO2007078440A2 (en
Inventor
William R Bandy
Michael R Arneson
Kevin J Powell
Original Assignee
Symbol Technologies Inc
William R Bandy
Michael R Arneson
Kevin J Powell
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/312,494 external-priority patent/US20070139162A1/en
Priority claimed from US11/312,606 external-priority patent/US7969282B2/en
Application filed by Symbol Technologies Inc, William R Bandy, Michael R Arneson, Kevin J Powell filed Critical Symbol Technologies Inc
Priority to EP06837802.5A priority Critical patent/EP1964416A4/en
Publication of WO2007078440A2 publication Critical patent/WO2007078440A2/en
Publication of WO2007078440A3 publication Critical patent/WO2007078440A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10356—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
    • G06K7/10475—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications arrangements to facilitate interaction with further interrogation devices, e.g. such that at least two interrogation devices may function and cooperate in a network of such devices

Abstract

Methods, systems and apparatuses for RFID readers forming a reader network are described. In an aspect of the present invention, a plurality of RFID readers are configured to interrogate tags. Furthermore, the readers are configured to communicate with one another. Each reader includes a network interface module and an optimization module to receive and process statistical data obtained from other readers in the network. A set of operational rules for the environment is indicated, and tag interrogations are optimized according to the rules. Readers may communicate according to a “Listen Before Talk” (LBT) protocol to avoid undesirable interference. Individual readers are capable of dynamically establishing and joining a network, and leaving the network in a self-configured and semi-autonomous or autonomous manner.
PCT/US2006/044531 2005-12-21 2006-11-17 Optimized operation of a dense reader system with improved listen before talk communications WO2007078440A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06837802.5A EP1964416A4 (en) 2005-12-21 2006-11-17 Optimized operation of a dense reader system with improved listen before talk communications

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/312,494 US20070139162A1 (en) 2005-12-21 2005-12-21 Dense reader system with improved listen before talk communications
US11/312,606 2005-12-21
US11/312,494 2005-12-21
US11/312,606 US7969282B2 (en) 2005-12-21 2005-12-21 Optimized operation of a dense reader system

Publications (2)

Publication Number Publication Date
WO2007078440A2 WO2007078440A2 (en) 2007-07-12
WO2007078440A3 true WO2007078440A3 (en) 2007-12-06

Family

ID=38228688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/044531 WO2007078440A2 (en) 2005-12-21 2006-11-17 Optimized operation of a dense reader system with improved listen before talk communications

Country Status (2)

Country Link
EP (1) EP1964416A4 (en)
WO (1) WO2007078440A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7969282B2 (en) 2005-12-21 2011-06-28 Symbol Technologies, Inc. Optimized operation of a dense reader system
US9767327B2 (en) 2007-11-06 2017-09-19 Intermec Ip Corp. RFID network and method for operating the RFID network
US20120161930A1 (en) * 2010-12-28 2012-06-28 Symbol Technologies, Inc. Cross-read resolution method for use in a radio frequency identification system
JP6098260B2 (en) * 2013-03-19 2017-03-22 オムロン株式会社 RFID system, communication device and communication program
JP7021654B2 (en) * 2019-03-14 2022-02-17 オムロン株式会社 Communication system and communication method of communication system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050088284A1 (en) * 2003-10-09 2005-04-28 Zai Li-Cheng R. Method and system of using a RFID reader network to provide a large operating area
US20050093679A1 (en) * 2003-10-31 2005-05-05 Zai Li-Cheng R. Method and system of using active RFID tags to provide a reliable and secure RFID system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050088284A1 (en) * 2003-10-09 2005-04-28 Zai Li-Cheng R. Method and system of using a RFID reader network to provide a large operating area
US20050093679A1 (en) * 2003-10-31 2005-05-05 Zai Li-Cheng R. Method and system of using active RFID tags to provide a reliable and secure RFID system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP1964416A4 *

Also Published As

Publication number Publication date
EP1964416A2 (en) 2008-09-03
WO2007078440A2 (en) 2007-07-12
EP1964416A4 (en) 2015-05-06

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